<!DOCTYPE html>
<html>

	<head>
		<meta charset="UTF-8">
		<title></title>
		<style>
			/*div{
				color: yellow;
				font-size: 100px;
				border: 1px solid red;
			}
			span{
				color: yellow;
				font-size: 100px;
				border: 1px solid red;
			}*/
			div,span{
				color: yellow;
				font-size: 100px;
				border: 1px solid red;
			}
		</style>
	</head>

	<body>
		<!--
			【需求】选中页面上的所有div和span，给其添加如下样式：
				1.字体为黄色；
				2.字号为100px；
				3.边框  1px solid red;
		-->
		<div>我是div1</div>
		<div>我是div2</div>
		<span>我是span1</span>
		<span>我是span2</span>
	</body>

</html>